USDA United States National Fungus Collections
Catalog #: BPI 994872
s.n.
Erysiphe holosericea (Wallr.) Link

USDA United States National Fungus Collections
Catalog #: BPI 562766
Cesati; Bauer; Lasch s.n.
Erysiphe communis (Wallr.) Schltdl.
Germany, italy Darmstadt & Driesen & Doemitz (Germany), Vercellis (Italy)